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39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdint.h>
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#include <sys/param.h>
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#include "esp_attr.h"
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#include "soc/rtc.h"
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#include "esp32c3/clk.h"
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#include "esp32c3/rom/ets_sys.h"
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#define MHZ (1000000)
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int IRAM_ATTR esp_clk_cpu_freq(void)
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{
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return ets_get_cpu_frequency() * MHZ;
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}
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int IRAM_ATTR esp_clk_apb_freq(void)
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{
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return MIN(80, ets_get_cpu_frequency()) * MHZ;
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}
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int IRAM_ATTR esp_clk_xtal_freq(void)
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{
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return rtc_clk_xtal_freq_get() * MHZ;
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}
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